Aguilar OBP-3SK

Features:
Bass control: +/- 18 dB @ 40 Hz
Mid control: +/- 16 dB @ 400 Hz or 800 Hz. Selectable frequency
Treble control: +/- 16 dB@6.5 KHz
Input impedance: 1 mega ohm
Output impedance: 100 ohms (9 or 18 volts). Additional 6dB with 18 volts
Distortion: 0.019 in ohm 10k
Noise: -95 dBm
Battery life: 324 hours
Cable length: 16.51 cm
Low phase noise
Dimensions: width cm 2.49, length cm 2.49, depth cm 1.5
Warranty: three years
Included Single knob controls Treble and Bass; separate Mid pot. Mini-toggle switch for Midrange frequency selection.